put a breaker bar between the gearbox and green part on the driveshaft and lever it out theres a washer/sirclip that drops down and holds it in you so just lever it out with a big screwdriver or breaker bar
or you can get a big screwdriver in the slit on the green part of the driveshaft and hit the screwdriver with a hammer that will have the same effect i find the breaker bar way easier though
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